Join us for the 6th annual Sundae Runday, where we combine our love of running with a love for ice cream! Finish your 10K, 5K run, or 2 mile (plus a little bit) walk with a delicious ice cream sundae with all the toppings!
Race Day Schedule:
8:30AM – Registration and Packet Pickup Opens
9:00AM – Costume Contest
9:15AM – Kids Dash
9:30AM – 10K Start
9:45AM – 5K and 2 Mile start
10:00AM - Ice cream time!
10:30am - Awards
Sundae FUNday Festivities:
- Post-race ice cream treats for all, including your four-legged friends!
- Finisher's item, it will be something fun, and functional!
- Water and whipped cream at the banana split halfway mark!
- Chance to beat the ice cream
- Free Event Photos
- Kid’s Tent with Games & Crafts
- Kids Dash with finisher items and ice cream
- Costume Contest - put on your Sundae best!
- Traffic free course through Seward Park and the shores of Lake Washington.
- Stroller friendly event
- Furry Friends: Dogs are welcome to run with us! Check the box at registration to pre-register your pup and guarantee a doggy treat in the Sundae line!
Registration Info:
10K
January 1 - 9: $35
Jan 10 - May 16: $45
May 17 - July 16: $50
July 17 - August 15: $55
Day of Event Registration - $60
5K & 2 Mile Walk
January 1 - 9: $30
Jan 10 - May 16: $40
May 17 - July 16: $45
July 17 -August 15: $50
Day of Event Registration - $55
- Kids 15 and under - $25 (includes shirt and ice cream)
- Kids dash - $10 - (includes ice cream and finisher's ribbon)
- Register by July 15 to guarantee your shirt size.
Teams of 6 or more get an automatic discount. Once the 6th person signs the first 5 participants get a refund!
Volunteer with us and get a race shirt, and a trip through the sundae toppings bar without all that pesky running!
Benefiting Let Me Run - Let Me Run is building a new generation of men by teaching boys to be their best selves through a character development program powered by running.
Aug 16, 2026
Distance — 400 Yards
Type — Running
09:00
$10.00
Aug 16, 2026
Distance — 10K
Type — Running
09:30
$35.00
Aug 16, 2026
Distance — 2.3 Miles
Type — Running
09:45
$30.00
Aug 16, 2026
Distance — 5K
Type — Running
09:45
$30.00
These values represent the 3-year monthly averages for August in Seattle.
Learn more about the host city, Seattle.
Seattle, Washington sits at one of the most beautiful spots in the United States. Occupying a narrow isthmus between the Puget Sound and Lake Washington, it is the biggest city in the Pacific Northwest, with 780,000 people in Seattle and over four million people in the metro area. Seen from above, carpets of evergreen trees, pristine blue waters, and snowy white mountains surround the downtown's metallic skyscrapers, earning the city its nickname The Emerald City.
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